Ultra-small palladium nano-particles synthesized using bulky S/Se and N donor ligands as a stabilizer: application as catalysts for Suzuki–Miyaura coupling

Abstract

Monodispersed ultrasmall Pd nanoparticles synthesized utilizing bulky organochalcogen secondary amines as stabilizers and application in Suzuki coupling of aryl chlorides at low catalyst loading.

Catalytically active nanosized Pd9Te4(telluropalladinite) and PdTe (kotulskite) alloys: first precursor-architecture controlled synthesis using palladium complexes of organotellurium compounds as single source precursors

“…The number of catalytic systems in general and nanocatalytic systems in particular, which are competent to catalyze the coupling of aryl chlorides, is not very high. [51][52][53][54][55][56][57][58][59][60][61][62][63] In fact, aryl chlorides are the least reactive substrates, and most of the catalytic systems either show inactivity for these substrates or show very low efficiency. Many of the reported palladium based nanocatalytic systems require longer reaction times (Table 4, (Table 4, entry 1-4, 15).…”

“…62 In the recent past, organosulphur and organoselenium compounds have been used as stabilizers to obtain uniformly dispersed catalytically active nanoparticles of palladium(0) for Suzuki coupling. [58][59][60] On assessing their performance on various parameters (such as reaction time, catalyst loading and % conversions), it becomes clear that these are less efficient [58][59][60] than the present nanocatalytic systems (i.e. Pd 9 Te 4 and PdTe).…”

Amino‐Induced 2D Cu‐Based Metal–Organic Framework as an Efficient Heterogeneous Catalyst for Aerobic Oxidation of Olefins

“…After six successive cycles, the Cu-AIA-PC-Pd catalystr emains substantially active and no significant decreasesi nt he catalytic efficiency are observed ( Figure S22). Compared with the catalysts reported in literatures (TableS5), [73][74][75][76][77][78][79][80][81][82][83] the obtained Cu-AIA-PC-Pd also exhibits excellentc atalytic activity.T he results confirm that Cu-AIA as a2 Dcarriertos upport metal catalysts is feasible.…”

Organoselenium ligands for heterogeneous and nanocatalytic systems: development and applications

“…66 Organoselenium ligands have been utilized in the design of nanocatalysts using two different approaches. In some cases, they have been used as stabilizers of transition metal nanoparticles [38][39][40] due to the good binding affinity of the Se donor groups with transition metals. However, in a large number of cases such ligands have been used as building blocks for metal complexes which function as single source precursors for nanosized metal selenides.…”

“…Na 2 PdCl 4 ) is reduced in the presence of an organoselenium compound, and catalytically active as well as stable nanoparticles of metal, stabilized with an organoselenium compound, are produced. [38][39][40]52 Such nanoparticles can be isolated and stored. All the organoselenium compounds used as the stabilizers so far contain Se in the form of selenoether functionality.…”